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80667474140 = 22511233333667
BaseRepresentation
bin100101100100000100…
…1111111100011011100
321201012212002021101102
41023020021333203130
52310201333133030
6101020315532232
75554005134231
oct1131011774334
9251185067342
1080667474140
1131235760300
121377345a078
1377b74c6626
143c93687788
152171db8c45
hex12c827f8dc

80667474140 has 36 divisors (see below), whose sum is σ = 186201869448. Its totient is φ = 29333626080.

The previous prime is 80667474137. The next prime is 80667474161. The reversal of 80667474140 is 4147476608.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16664414 + ... + 16669253.

Almost surely, 280667474140 is an apocalyptic number.

It is an amenable number.

80667474140 is an abundant number, since it is smaller than the sum of its proper divisors (105534395308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80667474140 is a wasteful number, since it uses less digits than its factorization.

80667474140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33333698 (or 33333685 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 47.

The spelling of 80667474140 in words is "eighty billion, six hundred sixty-seven million, four hundred seventy-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 121 220 242 484 605 1210 2420 33333667 66667334 133334668 166668335 333336670 366670337 666673340 733340674 1466681348 1833351685 3666703370 4033373707 7333406740 8066747414 16133494828 20166868535 40333737070 80667474140